{
  "name": "iChatWorld",
  "short_name": "iChatWorld",
  "description": "Zero-login classroom real-time chat and file sharing",
  "start_url": "/",
  "display": "standalone",
  "background_color": "#FAFAFA",
  "theme_color": "#007AFF",
  "icons": [
    {
      "src": "data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 512 512' fill='%23007AFF'><rect width='512' height='512' rx='128' fill='%23007AFF'/><path d='M256 128C185.3 128 128 185.3 128 256c0 28.5 9.3 54.8 25.1 76.1L128 416l83.9-25.1c21.3 15.8 47.6 25.1 76.1 25.1 70.7 0 128-57.3 128-128s-57.3-128-128-128z' fill='white'/></svg>",
      "sizes": "512x512",
      "type": "image/svg+xml"
    }
  ]
}